linux 判断指定用户对指定目录具有的权限
脚本名:power.sh
脚本内容:
#!/bin/sh username3=$1 dir_name2=$2 # get existing directory file_path=$dir_name2 while true do if [ -d $file_path ];then break; fi file_path=${file_path%/*} done dir_name2=$file_path # Judge whether the user exists grep "^$username3:" /etc/passwd >/dev/null if [ $? -ne 0 ];then echo "This user \"$username3\" does not exist." exit 4 fi #echo "username : $username3" group4=` grep "^$username3:" /etc/passwd |awk -F : {'print $4'}|xargs -i grep {} /etc/group|cut -d":" -f1` #echo "group : $group4" su -l $username3 -c "test -r $dir_name2" is_read=$? su -l $username3 -c "test -x $dir_name2" is_exe=$? su -l $username3 -c "test -w $dir_name2" is_write=$? $is_read_str $is_exe_str $is_write_str if [ $is_read -eq 0 ];then is_read_str="r" else is_read_str="-" fi if [ $is_exe -eq 0 ];then is_exe_str="x" else is_exe_str="-" fi if [ $is_write -eq 0 ];then is_write_str="w" else is_write_str="-" fi echo "${is_read_str}${is_write_str}${is_exe_str}"
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注意:必须以root 身份执行该脚本。
脚本power.sh 需要两个参数,第一个表示指定的用户,第二个表示指定的目录
测试:
[root@ppc40 study]# sh power.sh whuanga4 /tmp/abc/dd
This user "whuanga4" does not exist.
[root@ppc40 study]# sh power.sh whuang4 /tmp/abc/dd
rw-
(说明:表示用户whuang4 对目录/tmp/abc/dd 具有读和写权限,没有执行权限)。
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